A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. This affects the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dipaddress/sipaddress leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability was found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this issue is the function wirelessApcli5g of the file /goform/wirelessApcli5g. The manipulation of the argument apclimode5g/apclienc5g/apclidefaultkey5g leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been declared as critical. This vulnerability affects the function QoSPortSetup of the file /goform/QoSPortSetup. The manipulation of the argument port0group/port0remarker/ssid0group/ssid0remarker leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. This vulnerability affects unknown code of the file /goform/form2lansetup.cgi. The manipulation of the argument ip leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

The web interface of multiple D-Link routers, including DIR-600 rev B (≤2.14b01) and DIR-300 rev B (≤2.13), contains an unauthenticated OS command injection vulnerability in command.php, which improperly handles the cmd POST parameter. A remote attacker can exploit this flaw without authentication to spawn a Telnet service on a specified port, enabling persistent interactive shell access as root.

Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.

A vulnerability was detected in D-Link DIR-816L 206b09beta. Affected by this vulnerability is the function authenticationcgimain of the file /authentication.cgi. Performing manipulation of the argument Password results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability was found in D-Link DIR-600 up to 2.15WWb02. Affected by this vulnerability is an unknown functionality of the file hedwig.cgi of the component HTTP Header Handler. The manipulation of the argument Cookie results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

The web interface on D-Link DIR-100, DIR-120, DI-624S, DI-524UP, DI-604S, DI-604UP, DI-604+, and TM-G5240 routers; Planex BRL-04R, BRL-04UR, and BRL-04CW routers; and Alpha Networks routers allows remote attackers to bypass authentication and modify settings via an xmlsetroodkcableoj28840ybtide User-Agent HTTP header, as exploited in the wild in October 2013.

The runShellCmd function in systemCheck.htm in D-Link DSR-150 with firmware before 1.08B44; DSR-150N with firmware before 1.05B64; DSR-250 and DSR-250N with firmware before 1.08B44; and DSR-500, DSR-500N, DSR-1000, and DSR-1000N with firmware before 1.08B77 allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) "Ping or Trace an IP Address" or (2) "Perform a DNS Lookup" section.

Stack-based buffer overflow in the dohnap function in www/mycgi.cgi in D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmware 1.01 and earlier allows remote attackers to execute arbitrary code via a long Content-Length header in a GetDeviceSettings action in an HNAP request.

D-Link DAP-1320 Rev Ax with firmware before 1.21b05 allows attackers to execute arbitrary commands via unspecified vectors.

Stack-based buffer overflow in the DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary code via a long string in a GetDeviceSettings action to the HNAP interface.

Buffer overflow in the SSH server functionality on the D-Link DES-3800 with firmware before 4.50B052, DWL-2100AP with firmware before 2.50RC548, and DWL-3200AP with firmware before 2.55RC549 allows remote attackers to execute arbitrary code or cause a denial of service via unspecified vectors.

D-Link DIR-809 devices with firmware through DIR-809AxFW1.12WWB0320190410 were discovered to contain a stack buffer overflow vulnerability in the function sub80046EB4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

D-Link DIR-809 devices with firmware through DIR-809AxFW1.12WWB0320190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN80040af8 in /formWlanSetup. This vulnerability is triggered via a crafted POST request.

Missing Authentication for Critical Function vulnerability in debugpostset.cgi of D-Link DWR-932C E1 firmware allows an unauthenticated attacker to execute administrative actions.

D-Link DIR-809 devices with firmware through DIR-809AxFW1.12WWB0320190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN800462c4 in /formAdvFirewall. This vulnerability is triggered via a crafted POST request.

OS Command Injection vulnerability in debugfcgi of D-Link DWR-932C E1 firmware allows a remote attacker to perform command injection via a crafted HTTP request.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction in the handler function of the /goform/form2systime.cgi route. This could lead to command injection via shell metacharacters in the datetime parameter.

The checklogin function in D-Link DNR-326 before 2.10 build 03 allows remote attackers to bypass authentication and log in by setting the username cookie parameter to an arbitrary string.

D-Link DNS-320L firmware before 1.04b12, DNS-327L before 1.03b04 Build0119, DNR-326 1.40b03, DNS-320B 1.02b01, DNS-345 1.03b06, DNS-325 1.05b03, and DNS-322L 2.00b07 allow remote attackers to bypass authentication and log in with administrator permissions by passing the cgisetwto command in the cmd parameter, and setting the spawned session's cookie to username=admin.

D-Link device DIR878FW1.30B08Hotfix02 was discovered to contain a command injection vulnerability in the twsystem function. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request.

D-Link devices DIR878 DIR878FW1.30B08Hotfix02 and DIR882 DIR882FW1.30B06Hotfix02 were discovered to contain a command injection vulnerability in the system function. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request.

D-Link device DIR882 DIR882FW1.30B06Hotfix02 was discovered to contain a command injection vulnerability in the twsystem function. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request.

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/addRouting route. This could lead to Command Injection via Shell Metacharacters.

D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dirsetWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.

HNAP1/control/SetMasterWLanSettings.php in D-Link D-Link Router DIR-846 DIR-846 A1100.26 allows remote attackers to execute arbitrary commands via shell metacharacters in the ssid0 or ssid1 parameter.

An issue was discovered on D-Link DSL-2640B B2 EU4.01B devices. A hard-coded account allows management-interface login with high privileges. The logged-in user can perform critical tasks and take full control of the device.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of D-Link DCS-960L v1.07.102. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the SOAPAction request header, the process does not properly validate the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8458.